Glass lens.



J. A. YOUNG & G. YOUNG, JR-

GLASS LENS.

APPLICATION FILED SEPT.15, 1913.

1,088,863. Patented Mar. 3, 1914.

awuwwkw J 0 sephEYomcg G rge v YoungJn JOSEPH ALBERT YOUNG AND GEORGEYOUNG, JR., 0F BELLEVUE, IOWA.

GLASS LENS.

Application filed September 15, 1913.

Specification of Letters Patent.

Patented Mar. 3, 191a. Serial No. 789,868.

To all whom it may concern Be it known that we, YOUNG and Gnome YOUNG,Jr., the United States, residing at the county of Jackson and State ofIowa, have invented certain new and useful Tmprovements in Glass Lenses,of which the following is a specification, reference being had thereinto the accompanying drawing.

This invention relates to signs and has special reference to that typeof illuminating signs wherein the casing is provided with a number ofopenings arranged to suit the design and lenses are held in theseopenings to be illuminated by a suitable electric or other light placedwithin the casing.

The principal object of this invention is the production of a simple andeflicient means for holding the lens in a locked ongagement with thecasing whereby the lens will be prevented from rotating.

WVith the above and other objects in view as will be hereinafterapparent, the invention consists in general of certain novel details ofconstruction, combinations of elements and arrangements of partshereinafter fully described and illustrated in the accompanying drawingand specifically claimed.

In the accompanying drawing, like characters of reference indicate likeparts in the several views, and: Figure 1 is a view from the rear of alens showing it in position in a casing, the view illustrating theposition of the lens at the moment of its insertion. Fig. 2 is avertical section through the lens shown in Fig. 1. Fig. 3 is a view ofthe easing prior to the insertion of the lens. Fig. at is a perspectiveview of the lens removed from the casing. Fig. 5 is a view of the lensand a portion of the casing showing the lens locked in osition. Fig. 6is a side elevation of the cevioe showing the casing in section andillustrating how the casing may yield to accommodate the locking lug.

For the purpose of illustrating the device there has been shown in thepresent case a single lens and a small portion of one wall of a casing.It will be obvious, however, that the lens ma be of other shapes orarrangements and that the lenses will be arranged in some particularorder on the easing according to the design of the sign to beconstructed.

The casing is indicated at 10 and this cas- Josern ALBERT citizens ofBellevue, in

' ing is provided with one or more openings 11, which are circular ingeneral form but which have spaced notches 12 extending into the body ofthe metal of which the casing is formed.

The lens to be used in connection with this device is provided with abody portion 13 preferably concavo-convex and having a rearwardlyprojecting annular rib 11. Furthermore, the rib 14: is so arranged thatan annular shoulder 15 is formed exterior of this rib. Projecting fromthe rib 14 are a series of spaced lugs 16 which are equal in number tothe notches 12 and similarly spaced. These lugs 16 have curved sides 17while their inner ends are spaced from the shoulder 15. By placing alens within one of the openings 11 so as to allow the lugs 16 to restwithin the notches 12 the lens will be so positioned as to force thecasing between the inner ends of the lugs 16 and the shoulder 15, sinceby rotating the lens 13 the casing will ride upon the curved sides 17 ofthe lugs 16 for facilitating the placing of the casing between the lugsand shoulder. \Vhen it is desired to build up a sign with these lenses asuitable design is formed by stamping a series of openings through themetal and the lenses are then inserted in such a manner that the lugs 16will pass through the notches 12 after which the lenses are rotated tothe position shown in Fig. 5 so that the lugs 16 will engage over theedge of the opening 11, by means of the curved sides 17 The rib 14: isprovided with an integral square locking lug 1S positioned between twoof the lugs 16, whereby after the casing is positioned between the lugs16 and shoulder 15 the locking lug will be positioned within one of thenotches 12 for preventing the lens from rotating. In this manner it willbe seen that the lens cannot be lost from the casing 10 after the easingis positioned between the lugs 16 and the shoulder 15 by rotating thelens whereby the locking lug 18 will be positioned within a notch 12.

There has thus been provided a simple and eflicient device of the kinddescribed and for the purpose specified.

It is obvious that many minor changes may be made in the form andconstruction of this invention without departing from the materialprinciples thereof. It is not therefore desired to confine the inventionto the exact form herein shown or described,

but it is wished to include all such as properly come within the scopeof the appended claim.

WV hen it is desired to place a lens in position, the lugs 16 will bepositioned and operated as above set forth. As the lens is rotated thecasing will ride upon the curved sides 17 of the lugs 16 thereby forcingthe locking lug 18 into firmer engagement with the casing 10. hen thecasing 1 rests be tween the shoulder 15 and the lugs 16, the locking lug18 will have forced the casing, which is formed of sheet metal, to yieldas shown in Fig. 6. As soon as the lens is rotated approximatelyonesiXth of a revolution, the locking lug 18 will rest within one of thenotches 12 as shown in Fig. 5 at which time the casing will spring toits normal flat position whereby the lens will be held in position bythe rotation by the locking lug 18.

Having thus described the invention, What is claimed as new, is

In a sign of the class described, a casing provided with an opening,said casing provided with a plurality of notches adjacent said opening,a lens carried by said casing,

Copies of lu s 16 and a 'ainst.

b to

said lens provided upon its rear. portion with an annular rib,aplurality of lugs formed upon said .rib, said lugs each vided with acurved side, a shoulder formed upon said lens at a spaced distance fromthe inner ends of said lugs, said lugs adapted to be positioned withinsaid notches, and said lens adapted to rotate whereby said casing willride upon said curved sides of said lugs for positioning said casingbetween said lugs and said shoulder for holding said lens in engagementwith saidvcasing, said annular rib provided with an integrally formedsquared locking lug, said locking lug positioned between said firstmentioned lugs, said locking lugadapted to fit in one of said notchesfor holding said lens against rotation, whereby said lens will be heldsecurely in engagement with said casing.

In testimony whereof we hereunto affix our signatures in presence of twowitnesses.

JOSEPH ALBERT YOUNG. GEORGE YOUNG, JR. WVitnesses O. A. COURTADE, A. F.DICKMANN.

this patent may be obtained for five cents each, by addressing theCommissioner of Patents.

Washington, D. G.

pro-

